Carbureter and governor for hydrocarbon-engines.



No. 731,999. PATENTED JUNE23, 1903.

l L. T.- HAGAN.

OARBURBTER AND GOVERNOR FOR HYDROGARBON ENGINES APPLICATION FILEDAUG.19- 1902.

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GARBURETER AND GOVERNOR FOR HYDROGARBON ENGINES.

APPLICATION FILED AUG.19, 1902.

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UNITED STATES Patented June 23, 1903.

PATE T OFFICE.

LOUIS T. HAGAN, OF WINCHESTER, KENTUCKY, ASSIGNOR OF ONE-HALF TO CHARLESHAGAN, OF WINCHESTER, KEN"UCKY.

CARBURETER AND GOVERNOR F OR HYDROCARBON-ENGINES.

SPECIFICATION forming part of Letters Patent No. 731,999, dated June 23,1903.

Application filed August 19,1902. Serial No. 120,216- (No model.) I

To all whont it may concern.-

Be it known that I, Lours T. HAGAN, a citizen of the United States,residing at Winchester, in the county of Clark and State of Kentucky,have invented new and useful Improvements in Carburetors and Governorsfor Hydrocarbon-Engines, of which the following is a specification.

This invention relates to a carburetor and. governor for use inconnection with engines employing liquid hydrocarbon as the operatingagent; and the object of the invention is to provide a simple andeffective apparatus of this character wherein the air and hydrocarbonare properly and thoroughly admixed and their automatic supply to thecylinder or other part of the engine secured.

The device includes in its construction a reservoir or receptacle forthe liquid hydrocarbon, which may be gasolene or any other fluid of thischaracter, a peripherally-perforated Wheel, and a chain supported by theperiphery of said wheel and freely suspended or hanging in saidreservoir, by reason of which when the wheel rotates the chain, which ispreferably endless, will take up a supply of the liquid fuel, which runsfrom the upper end of said chain through the perforations in the upperside of the wheel and into a mixingchamber, the fluid as it enters theperforations being mixed with atmospheric air drawn into the apparatusby the suction of the engine. The chain and wheel by their operationinsure a uniform supply of hydrocarbon to the engine.

In the present case the mixing-chamber embodies two tubes, eachperforated and one inside of the other, the outer tube being fixedrelatively to its companion and having openings through whichatmospheric air is adapted to pass and through which the commingledhydrocarbon and air also pass. The inner tube is slidable in itscompanion and is automatically operable by governing mechanism, so as toregulate the amount of air and bydrocarbon that are to be supplied tothe engine.

The invention includes other objects and advantages which, with theforegoing, will be set forth at length in the following description, andsaid invention is clearly illustrated in the accompanying drawings,formingapart of this specification, and in which- Figure 1 is a verticalsectional elevation of a carbureter and governor embracing myimprovements. Fig. 2 is a transverse sectional elevation, the sectionbeing taken in the line 2 2, Fig. 1. Figs. 3 and 4 are detail elevationsshowinga different arrangement of ports for the admission of air andvapor or gas.

Certain of the parts of the apparatus are housed in a casing 5, thelatter having at its inner enda nipple 6 to receive the supply-pipe 7,which leads to the engine for the purpose of delivering thereto the gasor hydrocarbon vapor.

The outer end of the casing 5 is closed by a cap or cover 7, from whichthe hub 8 extends, said hub being adapted to receive the hollow shaft 9,and said hollow shaft in turn receives a second shaft or spindle 10 forsliding movement therein, said shaft 10 beingintermittentlyreciprocated, as will hereinafter appear, by the governing mechanism.The said shaft 9 projects at its outer end beyond the hub or hearing 8and fixedly carries the pulley or band-wheel 11, adapted to beoperatively connected to the engine, which I have not deemed itnecessary to show, or the part 11 need not be of the kind set forth, forit may consist of any suitable power-driven ele ment capable oftransmitting a continuous rotary motion to the shaft 9 from the engine.

The inner end of the hollow shaft 9 is incased by the casing 5 andcarries a wheel 12, made in the form of a disk, having aninwardly-disposed annular flange perforated, as at 13. Upon theperforated flange of the wheel 12 is a belt or chain 14, which is shownas being endless and which is freely suspended from said wheel and hangsin the reservoir or receptacle 15, connected and usually made integralwith the casing 6. The periphery of the wheel 12 is provided withparallel flanges 16, between which the upper end of the belt or chain isdisposed and which serve to hold the same against lateral motion.

A pipe, as at 17, is tapped into the lower end of the reservoir 15 andis connected with some suitable source of liquid-fuel supply (not shown)for carrying the same into said reservoir.

The wheel 12 rotates in the chamber 18 near the outer end of the casing,and a port 19 connects said chamber with the atlnosphere for the purposeof admitting atmospheric air into the chamber to be admixed with thehydrocarbon to thereby vaporize the same, it being understood that theatmospheric air passes through the perforations 13 with the hydrocarbonto secure the desired result. A tube 20 is fitted in a cylindrical seatin the casing 5, its outer end being disposed within the perforated wall12 and having in alinement with the perforations 13 a series of ports orinlets 21. This tube has its outer end closed, and it is suitably fixedin place against turning and longitudinal movements and incloses asecond tube 22. The said inner tube has at its outer end a series ofports or inlets 23, adapted at certain times to fully register with theports 21 in the outer tube-that is to say, these ports are brought intofull registration when the maximum supply of gaseous vapor is' to bedelivered in the space within the inner tube, which space constitutes amixing-chamber. At a point forward of the ports 21 the outer tube isprovided with other ports 24, which are adapted at certain times tofully register with substantially similar ports 25 in the inner tube 22.

The casing 5 is provided with an annular chamber 26, surrounding theinner tubes intermediate their ends, and the air-inlet 27 opens from theatmosphere into this cham- ,ber, so that the atmospheric air can passthrough the ports 24 and 25 into the mixingchamber to be admixed withthe gaseous vapor within the inner tube. Said inner tube has'a slidingmovement within itscom panion, so as to regulate the amount of air andgas supplied to the engine.

The inner tube 22 consists of a series of sections separated from eachother in order to provide for the ports 25 and are united by the strips28, connected at their inner ends to the spider 29, the central body ofwhich is adapted tofixedly receive the inner end of the slid'able shaft10. The inner tube, which, it will be seen, is in communication with thesupply-pipe 7, extends inwardly a short distance beyond the outer tube,and this extended portion is diametrically slotted, as at 30, to receivethe free end of the lever 31, which bears between its ends against theprojection 32 upon the spider 29. The upper end of the lever-31 isfulcrumed in one branch of a substantially L- shaped tubular extension33 upon the band or ring 33, the other branch of said extension beingadapted to receive the spring-actuated plunger 34:, the inner end ofwhich is adapted to bear against the said lever below its fulcrum, so asto swing said lever outward, and thereby through the projection 32 andspider 29 move the shaft 10 outward in opposition to a centrifugalgovernor, hereinafter more particularly described. The band 33 issupported for rotation upon the nipple 6, and it will be evident that byturning the same, which can be accomplished by manipulating the tubularextension 33, the inner tube 30, through the lever 31, can be turned soas to regulate the amount of gaseous vapor passing through the ports 21and 23. The lever 31 extends up into the tubular extension 33 through acircumferential slot 35 in the nipple or boss 6.

The wheel 11 sustains the weighted anglelevers 36, constituting aconvenient form of governor, and the weights of which will be thrownoutward, as is the custom in this class of appliances, when the engineis run at a high speed. The non-weighted arms of the anglelevers 36 arefitted in a circumferential channel or groove in the nut 37, threadedonto the extreme outer end of the slidabl-e shaft 10 and held inposition by the check-nut 38. As the speed of the engine increases theweights of the levers 36 are swung outward, so that said levers serve,through the agency of the nut 37, to slide the shaft or spindle 10, andconsequently the inner tube 22, inward, thereby decreasing the amount ofair and gaseous vapor supplied to the mixing-chamber through the ports24 and 25 and 21 and 23 As the shaft 10 moves inward the lever 31 ismoved in a corresponding direction, thereby placing the spring of theplunger 34 under compression, and as the speed of the engine is reducedthe spring by relaxing acts against the lever 31 to return the same toits normal po-' sition, the same result following with respect to theweighted levers 36. 7

By turning the band 33 upon the nipple 6,

which can be secured by grasping the tubular extension 33, the innertube 22 can be manually turned, so as to regulate the amount of gaseousvapor entering the ports 21 and 23, to thereby produce the desiredproportion of vapor to air.

The shape and number of the air and vapor openings in the tubes can bevaried, so as to give the proper proportions of air and vapor at alltimes. Thus when the engine is running ona light load or no load and theair and vapor openings are nearly closed the proportion of the air tovapor required for the operation of the engine is greater than when theengine is running on a full load. This regulation can be accomplished inseveral ways-for example, by making the openings described of irregularshapes, as shown in Figs. 3 and 4, so that the area of air-openings 39will be reduced faster than the vapor-openings a0.

It will be understood that the governor serves to automatically operatethe inner or sliding tube 22, to thereby properly regulate the amount ofair and gaseous vapor admitted to the mixing-chamber and in accordancewith the load upon the engine. By reason of the form ofhydrocarbon-supply means hereinbefore described I am enabled to secure aIIO steady uniform supply of the liquid fuel. These results are securedby an apparatus in which no small openings are present and in whichvalves and floats are dispensed with, as it is found that the latter inpractice frequently become obstructed or deranged by dirt or water inthe liquid fuel or gas.

I do not limit the invention to the exact construction hereinbefore setforth, for said invention may be materially modified within the scope ofmy claims.

Of course the inner tube 22 may be operated in other ways than thathereinbefore described.

Having described my invention, what I claim is 1. In an apparatus of theclass described, a casing having a mixing-chamber, aperipherally-perforated rotary wheel in said casing, a belt extendingfrom the periphery of said wheel, and the perforations of the wheelbeing adapted to communicate with said mixing-chamber, a reservoir forhydrocarbon in which said belt hangs, and means for the supply of air tothe hydrocarbon.

2. In an apparatus of the class described, a casing having amixing-chamber, a peripherally-perforated rotary wheel in said casing, abelt suspended from the periphery of said Wheel and the perforations ofthe wheel being adapted to communicate with said mixing-chamber, areservoir for hydrocarbon, in which the belt hangs, and means for thesupply of air to the hydrocarbon, a shaft carrying said wheel andextending from the cas ing, and a power-driven member upon the shaft.

3. In an apparatus of the class described, a casing, tubes within thecasing, one tube inclosed by the other and each of them having portsadapted to register, and the inner tube being slidable in its companion,a peripherally-perforated rotary wheel in said casing, the perforationsof which are adapted to communicate with the ports in said tubes, a beltsuspended from the periphery of said wheel, a reservoir for hydrocarbon,in which said belt hangs, means for the supply of air to thehydrocarbon, a chamber surrounding the tubes intermediate their ends andadapted to communicate with certain of the ports thereof, said chamberopeninginto the atmosphere, and means for automatically or manuallyoperating said inner tube.

I. In an apparatus of the class described, a casing, tubes within thecasing, one tube inclosed by the other and each of them having portsadapted to register, and the inner tube being slidable in its companion,a peripherally-perforated rotary wheel in said casing, the perforationsof which are adapted to communicate with the ports in said tubes, a beltsuspended from the periphery of said wheel, a reservoir for hydrocarbon,in which said belt hangs, means for the supply of air to thehydrocarbon, a chamber surrounding the tubes intermediate their ends andadapted to communicate with certain of the ports thereof, said chamberopening into the atmosphere, a hollow shaft carrying said wheel andextending from the casing, a power-driven member upon said hollow shaft,a second shaft incased by the hollow shaft and connected with v theinner tube, and means for automatically tubes intermediate their endsand adapted to communicate with certain of the ports'thereof, saidchamber opening into the atmosphere, a centrifugal governor carried bysaid powerdriven member and connected with said second shaft foroperating the same in one direction, and means for operating said secondshaft in opposition to the governor.

6. In an apparatus of the class described, a casing, tubes within thecasing each having ports adapted to register with each other and onetube being inclosed movably within the other, a spider connected withthe inner tube, a peripherally-perforated rotary wheel in the casing,the perforations of which are adapted to register with ports in saidtubes, a hollow shaft connected with said wheel and extending from thecasing, a power-driven member fixed to said shaft, a second shaftextending through the hollow shaft and connected with said spider, acentrifugal governor upon the power-driven member, connected with saidsecond shaft, a spring-actuated lever adapted to engage said spider andextend through diametrically opposite slots in the inner tube, a rotarypart carrying said lever, air-supply means for the hydrocarbon, a beltsuspended from the periphery of said wheel, and a hydrocarbon-reservoirin which the belt hangs.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

LOUIS T. HAGAN.

Witnesses:

Jon. B. RAMsnY, RE. BRUCE.

